Joseph Humfrey Anger (3 June 1862 – 11 June 1913) was a Canadian organist, pianist, conductor, composer, and music educator of English birth. His compositional output consists mainly of church music and works for solo piano and organ. Some of his more well known works are A Concert Overture for organ (1895), the patriotic song Hail Canada (1911), and Tintamarre, Morceau de Salon (1911), all of which were published by Whaley, Royce & Co. The latter piece was notably the first published classical composition to thoroughly integrate true tone clusters. He also wrote the textbooks Form in Music and A Treatise on Harmony, both of which were widely used in music schools in North America.